I think in the world of professional kitchens it's a called a "chef's snack".
A taste, a nibble, a sample, a bite. Of course it's all to ensure that everything is seasoned perfectly and of the most superb quality.
You see that tasty strip of bacon there? The nice and crispy one. That is my little morsel to devour while preparing everyones sandwich. Sure, bacon is a golden commodity around here and you had better grab yours quick. Perhaps I have an unfair advantage being the sole chef in the kitchen, but I feel that gives me priority eating. No?
What's your take? Chef's snack, or over inflated sense of self entitlement?